Automatic paper-perforating machine.



PATENTED FEB. 6, 1906.

H. L. DAVIS. AUTOMATIC PAPER PE-RFORATING MACHINE.

APPLIOLTIOF FILED MAY 9, 1903.

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AYPLIUATIOH FILED MAY 9, 1903.

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AUTOMATIC PAPEFL-F'ERFORATING MAQHlNE.

Specification of Letters Patent.

Patented Feb. 6. 1906.

Application filed May 9. 1903- Serial No. 156,390.

Tn'all whom it may concern:

Be it known that illnmannr L. I). \v1s,a (it i zen of the United States. residing at Wushington, 1n the District of Columbia. have mvented certain new and iiseful Improvements in Automatic Paper Perforatin Machines. of which the following is a specification.

My invention relates to automatic paperperforating machines, and more particularly to that class of paper-perforating machines designed to perforate music-sheet paper for use with automatic piano-players and similar instruments.

The main object of my invention is to improve'and sim lify machines of this type, and the machine, erein'after described, may he considered, broadly, as an improvement upon the machine set forth in the prior patent granted to my brother, George Hewlett Davis, No. 659,053, dated October 2, 1900, to which reference may he made for a de- V tailed description of a machine of this class.

More particularly one part of my invention relates to the means for actuating the unchlocking devices in the reciprocatory p unger. In the above-mentioned patent electromagnets are employed to move said locking de-- vices from inoperative into operative position.

This necessitates the use of relatively powerf1 ll magnets, whereas in my present machine t: 1e movement of the lockin devices to operaoive position is performe by mechanicalmeans, electroma nets, neumatics, or other means being use only for the purpose of making the connection between said mechanical means and the locking devices. Consequently relatively small and weak ma nets are sufficient, and therebyaconsiderahle saving in the first cost and theo crating exopenses of, the machine is obtains Another part of my invention relates to the means emplo ed to intermittently feed the paper under '0 e punches. -In' the aforesaid patent is described and claimed an endless apron-feed comprising pairs of clamping-plates for gripping the material so arngedsthat-smere than one pair of such lates are always .in operative position.

here was also rovided' a pair of cooperatin feed-rolls to he use'dwhen a single strip is being fed and perforated, as when a pining: record is, made, the a ran-feed being required when a plurality of uplicateswere simultaneous1y'perforated injorder to revent some in workiiig of the sixteen or more-sheets out of line with theothersi In my present 5 machine I have devised an improved rollerfeed which accomplishes the same result as the aforesaid apron-feed, thus ohyiating the necessity of providing two lending mechanisms and procuring a great saving of space, as well as in the cost of the machine.

In the accom 'ianying drawings, Figure 1 is l a side elevation, partly in section, of my complete machine. Fig. 2 is a sectional view of one of my improved feed-rolls. Fig. 3 is an end view of the same. Fig. 4 is an end view of a modified form of feed-roll. Fig. 5 is a artial sectional view ofthe same, and Fig. 6 Illustrates a modification of the pnnch-controlling means.

.Proceeding with a detailed description of my invention, 1 in the accompanying drawings is the frame of the machine, 2 the stationa die, and 3 the plunger, which is arrange to be continuously reci rocated at a high rate of speed by the driving-shaft 4. The lower end of said plunger carries a series of punches 5, which are normally free to move longitudinally therein. The other ends of the punches 5 are guided in the upper part of the die-block 5, thus preventing an inaccuracy in the work, owing to wear oi the cooperating edges of the punches and dieblock. Transverse passage ways are also provided in the lower part of the longer, in which the locking-(logs 6 are slida ly niounted. These do 5 are recessed, as at 7, and are normally held by the s rings 8 with said recesses over the heads of lhe punches, in which ppsition the punches do not reciprocate with the plunger. I will now describe my improved'mechanism for moving said lockingdogs against the tension of the springs 8 into position to l0c k the punches to the plunger. Slidabl'y'supported by a standard on the framh is a cross-head9, which is reciprocated in a. direction transverse to the movement of the plunger 3 by'the lever 10, red 11, and cam-finger 12 on the driving-shaft 4, said connecting mechanism acting; to the spring 13, which ten to keep said cross-head in its position nearest to the plunger. It will thus be seen that once in av revolution of the shaft 4 the cross-head 9. 1 be moved away from the plunger and that one such movement occurs for each stroke of the plunger. The means employed to connect said crossheed with the aforesaid locking-do s consists of a series of draw-bars 14, pivot at 15 onsaid cross-head proded was the hooked ends I6. Said hooked 11 opposition IIO ends reciprocate normally slightly above the said locking-dogs, which latter are recessed, as at 17, to permit the engagement of said hooked ends 16 of the draw-bars therewith when the latter are depressed sufficiently to enga e in said recesses 17. Said draw-bars are elevated and depressed by means of slotted rods 18, embracing said bars, said rods bein carried by extensions of the arinatures 19 of the electromagnets 20, which armatures are pivoted at 21 to a standard on the frame and are normally held elevated by the coilsprings 22.

It will be understood that there are as many electromagnets, armatures, rods, drawbars, and locking-dogs as therc are punches and that the operation of each punch can be controlled by the corresponding combination of mechanisms independently of all the other punches. ate an one punch at a given moment is" t) close the circuit of the corresponding electromagnet, whereupon its armature is attracted, the corresponding draw-bar depressed, and on the next movement of the cross-head away from the plunger the particular locking-dog appertaining to the punch in question will be drawn out, so as to remove the recess therein from over the punch, and the latter will then be operated by the reciprocation of the plun- Each of the circuits of the electroma nets 20, one oiwhich is diagrammatically s own at 23, includes a battery 24 and is connected at one end to a contact-roller 25 and at the other end to a contact finger or selector 26. It wilLbe understood that while all the circuits are connected to the same contactroller there is a separate contact-finger for Between said roller and fin-- sheets being perforated. Thus the production of exact duplicates of the stencil-sheet is assured.

Before describing my improved feeding means it will be opportune to state here that in place of the electrical controlling means described above pneumatic means can be employed. In Fig. 6 I have shown the arrangement b which primary pneumatics 50 replace the e ectroma nets 20, and it will be obvious to any one skllled in the art that a neumatic tracker-board may be substituted for the electric contactdevices 25 26.

As before stated, It have devised novel feeding-rollers by which sixteen or even a more or less number of sheets can be fed simultaneously without danger of their be-- j 1mm salrl locking-dogs to move the latnr All that is required to oper-' shown in Figs. 1, .2, and 3 comprises a pair of disks 32 and 33, keyed to a shaft, as 34, and radially slotted at regular intervals, as at 35. In these slots are slidably mounted clampingjaws 36, which are pressed radially outward by springs 37. The center portions of said jaws, or those portions lying between lhe inner faces of the disks, pro cei beyond the pe riphery of said disks, while the end portions, which are guidei'l in the radial slots, are prevented from passing out of said slots by lugs or plates 38, which close the outer ends of said slots. Preferably two similar opposing rollers are en'iployed, as shown in Fig. l, and in that case the shafts 34 of the two rollers are geared together hythe intermeshing gears 39 40, keyed to said shafts.

One roller only of the type just described mi ht be employed, in which case a smooth rol er or other suitable sirface traveling at the same linear speed as the periphery of the clampin -roller would no used to cooperate thercwit but I prefer to employ a cooperating pair of my improved rollers, as shown in F1g. 1.

A modified form of roller illustrated in Figs. 4 and 5. In this case the clamping jaws 36 instead of being continuously pressed radially outward by springs are free to slide in the radial slots 35; but as they come into position to engage the material being fed they are positively moved radially outward by a cam 42, which is adjustably fixed to 'th frame in position to engage the antifriction rollers 47 on inner ends of the jaws 36. In either case the upper roller is intermittently rotated by a pawl 43, carried by a swinging arm {14, pivoted on the shaft 34, and enga ing the teeth of the gear 39 or of a suitab e ratchet-Wheel. The arm 44 is oscillated by a rod 45, similar tothe rod 11, and is also actuated by a pin, as 46, on the driving-shaft 4. Modifications or changes other than those herein specified may be made without avoidin the spirit of my invention.

hat I claim is-- 1. In a perforating-machine, the combination of a relatively movable plunger and dieblock, a plurality of punches slidably mounted in said plun er, punch-locking devices carried by said pl unger and held normally in inoperative position, and electrically-o en ated means controlled by a pattern-sheet, normally disengaged from said locking devices, to move said devices into position to lock said punches to said plunger in predi termined sequence, substantially as set forth.

2. In a perforating-machine, the combination of a relatively movable die-block and plunger, a plurality of. punches slidably mounted in said plunger, a pnnelslmwkmg dog for each punch normally held in inopew ativo position, means normally disengaged 6 comin relativel' dis laced. The roller; i'no iosition to lock said unchcs to thecflc S g 3 a l .5

plunger, and means controlled from a pattern to actuate said engaging means, substantially as described.

3. In a perforating-machine, the combination of a relatively movable lunger and die, a plurality of punches slida ly mounted in said plun er a locking-dog .for each punch normally ield in inoperative position, a re uiprocator v catch for each dog normally held out of engagement therewith, means to cause the catches and dogs to engage, and automatic means to control the sequence of said engagements.

4. In a perforating-machine the combination of a relatively movable lunger and die, a plurality of punches slidably mounted in said plunger, an independent locking-dog for each unch having a recess therein normally held in line axially with the punch, means to move each of said dogs into osi'tion to lock vthe corresponding punch to t e plunger, said means comprising a reciprocatorymernher, a series of catches ivoted thereto one for each dog, the ends 0 said catches assing ad'acent to the ends of said dogs b l ut norms ly held out of cage ement therewith, and means to cause sai catches to en ge the corresponding dogs in predetermined sequence.. v V

5. In a perforating-machine, the combination of a relatively movable lunger and die, a plurality of punches slide. ly' mounted in said plunger, an independent locking-dog f r each punch normally held in inoperative position a reciprocatory member carrying a series o pivoted catches, means to reciprocate said member back and forth once for eve u and-down stroke of the plunger, the an s 0 said catches being adapted toen age the ends of said locking-dogs but norm ly held out of engagement therewith, supportingrods ca said catches, levers attached to said rods an means to actuate said levers in predetermined seguence to cause said catches to on age said ogs and the latter to be move into operative position to Lock the punches to the plunger.

6. In a perforating-machine, the combine-i tion of a relatively movable lungerand die, aplurality of punches slida ly mounted in said plunger independent lockin -dogs mounted to. slide transversely in sai plungel adj aent to the ends of and punches, said ogs having recesses normally maintained in alinement with said punches, and means to move said dogs to lock said punches to said plunger,-said means com rising a member carrying a plurality of hoe ed catches means to reciprocate said member in a direction substantially transverse to the movement of the plunger, the hooked ends of said catches passing ad acent to thaends cf-the loclri dogs, means to normally maintain said an 5 out of engagement with the lucid ogs, and means to p ace said and: in pool ion to engage said dogs during the reciprocation of said member whereby said dogs will lock the punches to the plunger, said est-mentioned means being automatically controlled by pattern mechanism.

7. In a perforating-machine, the combination of a relatively movable plunger and die a series of unches axially movable in sai plun er, indbpendent loclnng means for said punc es a vibratory member carrying de vices adapted to engage and operate said locking means, means to reciprocate said member, means to normally hold said devices and locking means disengaged, a series of electromagnets and connections from the armatures thereof to said devices, and pattern mechanism arranged to control the circuits ofsaid electromagnetsl 8. In a perforatingsmachine, the combinationcf a relatively movable plunger and die a series of unches axially movable in-sai plun er, loc ing-dogs for said punches trans verse y mounted to slide in said plunger,- springs to normally maintain said dogs in inoperative position, a slidin member carrying a series ofdraw-bars a apted to engage and operate said locking-dogs, means to reciprocatc said member, a series of electrimagnets having pivoted armatures connected to said draw-bars, sprin s to normally maintain said .armatures an drawebar's in inoperative position, means to close and open the circuits of said electromagnets comprising a contact-cylinder and a series of contactfingers and means to feed a stencil or pattern sheet between said cylinder and fingers.

9. ,In a perforating-machine, the combination with a reciprocatory plunger carrying a plurality of punches capable of movement relative thereto, and a lock for each punch to hold it against movement, of actuatin devices to place the locks in lockin position with relation to the punches said evices being normally out o engagement with said locks, and pattern-controlled means to bring the actual: devices into engagement wit their respective locks.

10. In a perforating-machine, the combination with a reciprocatory km or carrying a luralit of punches ea a 1e 0 movement ative t ereto and aloe ior each punch to hold it against movement, of actua devices to lace the locks in lockin position with rela ion to the unches said eviccs bein normally out o engagement with the loc and reciprocable toward and away from the latter, means to reciprocate said devices and pattern-controlled means to place said devices in engagement with the lccks-durmg movement toward the same. i

11. In a perforating-machine, the combination with a reciprocatin plunger ca a plurality of punches 'a movemcnl relative thereto, and locks to l'oc the punches against movement, of actuating devices for :50

the locks normally out of engagement there- 14. In a perforating-machine, the. combi- 6 with and having movement toward and away nation with a reciprocatin plunger carrying from said locks, and electrically-operated a plurality of punches Eaving movement means controlled by a pattern-sheet to throw relative thereto, and locks to lock the punches 5 said devices into en agement with the locks against movement, of actuating devices for during movement '0 said devices 'in one dithe locks normally out of engagement there- 5 motion and to retain the said devices engaged with and having continuous movement towith the locks during the'reverse movement ward and away from said locks, and means of haid devices whereby the locks are actuto throw said devices into engagement with I, 10 ated to lock the punches to the plunger. the locks during movement of said devices 12. Ina perforating-machine, the combi- In one direction and to retain said devices 5 nation with a reciprocating plunger carrying engaged with the locks during the reverse 1 a plurality of punches having movement movement of said devices whereby the locks relativetheretmand locks tolock the punches are actuated to lock-the punches to the plun- 15 against movement of actuating devices for ger. I said locks normally disengage therefrom, 15. In a perforating machine, the combi- 5 5 trically-operated ,means controlled by a nation with a reciprocating plunger carrying pattern-sheet to'throw said devices into ena plurality of punches having movement gagement with the locks to actuate the latrelative thereto,-and locks to look the punches .ao ter to lock thepunches, and means to return algainst movement, of actuating devices for the locks to normal position when out of op e locks normally out of engagement there 60 erative relation to the actuating devices. with and having moveme 't toward and awe 13. In a perforating-machine, the combifrom said locks, and pattern-controlled eleonation with a reciprocating plunger carrying tricall operated means controlled by a 'pat- 25 a plurality of punches having movement tern-slieet to throw said devices into en age relative thereto, and locks to lock the punches ment with the locks during movement 0 said 1'85" against movement, of actuating devices for devices in one direction and to retain saiddethe locks normally out of engagement therevices engaged with the locks during the re with and having movement toward and away verse movement of said devices whereby the 0 from said locks, electrically-operated means locks are actuated to lock the punchestdthe' controlled by a pattern-sheet to throw said plunger. a Y 7? devices into engagement with the locks dur- In testimony whereof I have signedmy ing movement of'said devices in one direction name to specification in presence of two and to retain the pafrt-s ecrliggged durilrlig tlhe' witnesses. l a

5 reverse movement 0 zial evices w are p y Y a the locks are actuated to lock the unchestz' LPERBERT the plunger and means to return 'e locks to a Witnesses: normal sition when out of operative rela- 'JNo. J. Coon, tion to t e actuating'devices. N Arms Hues. 

